What is your opinion if a divorced father divulges to the children that the divorce makes them bastards? Let's say that there is a married couple who has teenage children, and the wife/mother files for divorce from the husband/father. Then, either while the divorce is occurring or after it has completed, the husband/father divulges to the children that since the mother has broken the marriage, that causes the children to be considered bastards.

Oh my, that is ridiculous in so many ways. First off, it is completely untrue based on the English meaning of the word. But even ignoring the semantics, that would be such a pointless and hurtful thing to do. The guy is a complete loser!